Which of the following is the best example of a primary reinforcer ? a. praise b. money c. food d. attention

C. Food is the best example of a primary reinforcer.

Explanation:

A primary reinforcer are those reinforcers which have biological importance.Primary reinforcement is also known as unconditional reinforcement, this means that they take place without any need of learning.Examples of primary reinforcers are: Food, sleep, water, air, sleep.Animals and human beings are born with a need for primary reinforcers.A good example to illustrate this is the need for milk by an infant.

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.